Cartridge for an electronic pen



FIG. 1 is a top-front-right perspective view of a cartridge for an electronic pen according to our new design;

FIG. 2 is a bottom-front-left perspective view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is an enlarged front elevational view thereof;

FIG. 10 is an enlarged rear elevational view thereof;

FIG. 11 is an enlarged partial top-front-right perspective view thereof having a boundary as shown in FIG. 1; and,

FIG. 12 is an enlarged partial bottom plan view thereof having a boundary as shown in FIG. 8.

The dot-dot-dash broken lines indicate the boundary of the enlarged portions of the drawings. The remaining broken lines in the figures depict portions of the cartridge for an electronic pen that form no part of the claimed design. While the solid lines in the drawings form part of the claimed design, the solid lines also provide written description of prospective embodiments with aspects that are not claimed when one or more of the solid lines are amended to broken lines. 

CLAIM The ornamental design for a cartridge for an electronic pen, as shown and described. 